Ruled out all possible reasons for alt 170 & ast 65 for 6 months except liver biopsy.i suspect nafld.bmi is 19 with perfect lipid profile what 2 do?

Suspect NAFLD also: I trust hepatitis b and c, hemochromatosis, antitrypsin, wilson's and autoimmunity were ruled out. Glad you don't drink. Trust it's not behcet's. Nafld almost never presents textbook-perfect. The real question might be whether you'd do well to undertake a serious program of aerobic fitness, which would be likely to get your liver back in shape. Or do it 4 its own sake without definitive diagnosis.